Impeller structure of in-groove vertical pump

Abstract

The utility model discloses an impeller structure of an in-groove vertical pump, which relates to the technical field of impeller structures and comprises a hub and a lower cover plate on one side of the hub, an upper cover plate is arranged on the hub, a plurality of mounting grooves are formed in the upper cover plate, and a filter assembly comprises a mounting plate mounted on one side of the upper cover plate and a filter screen on one side of the mounting plate. A fixing plate and a guide assembly are arranged on one side of the filter screen, the guide assembly comprises a plurality of guide plates installed on the fixing plate, the guide plates are distributed in an arc-shaped mode at equal intervals, the fixing plate is installed on one side of the filter screen, one end of each spiral blade is connected with the hub, and the filter screen installed on one side of the mounting plate can filter impurities in liquid. The filter screen can intercept large sundries, so that the large sundries cannot be in direct contact with the spiral blades of the impeller, the large sundries are prevented from damaging the spiral blades, normal operation of the impeller is guaranteed, flow and lift stability of the pump is maintained, and working efficiency of the pump is improved.

Description

Technical Field

[0001] This utility model relates to the field of impeller structure technology, and in particular to an impeller structure for a vertical pump in a trough. Background Technology

[0002] In many fields of industrial production, such as chemical, metallurgical, and environmental protection, in-tank vertical pumps have become key equipment for liquid transportation due to their unique structure and performance advantages. In these complex industrial environments, in-tank vertical pumps undertake the task of transporting liquids containing various impurities. As a core component, the impeller directly affects the pump's working efficiency and service life. In chemical production, the transported liquids often contain solid particles with reaction residues, while liquids in the metallurgical industry may carry metal fragments. Wastewater treated in the environmental protection field contains various impurities. When large impurities in these liquids enter the pump body, they directly impact the high-speed rotating impeller blades. Due to the high speed of the impeller, the collision and scraping between large impurities and the blades can easily cause the blades to deform and break.

[0003] Damage to existing impeller blades leads to unstable pump flow and head, reducing production efficiency and potentially affecting the stability of the entire production process. As blade damage worsens, maintenance costs and downtime increase. Repair requires specialized technicians and equipment. Replacing damaged blades is not only costly but can also cause production interruptions and significant economic losses. In some continuous production enterprises, such as chemical plants, prolonged shutdowns can paralyze production lines, reduce product quality, and even cause safety accidents.

[0004] Therefore, developing an impeller structure that can effectively prevent large debris from damaging the impeller and avoid clogging is a problem that needs to be solved, so as to prevent the normal operation of the equipment and losses to the enterprise. Utility Model Content

[0005] Given that the development of an impeller structure that can effectively prevent large debris from damaging the impeller and avoid clogging by debris is a problem that needs to be solved, thereby preventing the normal operation of the equipment and causing losses to the enterprise, this utility model is proposed.

[0006] Therefore, the purpose of this utility model is to connect one end of each spiral blade to the hub, and to filter impurities in the liquid by installing a filter screen on one side of the mounting plate. The filter screen can intercept large debris, preventing it from directly contacting the spiral blades of the impeller, thereby avoiding damage to the spiral blades by large debris, ensuring the normal operation of the impeller, and thus maintaining the stability of the pump's flow rate and head, and improving the pump's working efficiency.

[0007] To solve the above technical problems, this utility model provides the following technical solution: an impeller structure for a vertical pump in a trough, comprising an impeller structure for a vertical pump in a trough, including a hub and a lower cover plate on one side of the hub, wherein an upper cover plate is provided on the hub, and multiple mounting slots are provided on the upper cover plate;

[0008] The filter assembly includes a mounting plate installed on one side of the top cover plate, and a filter screen on one side of the mounting plate, wherein a fixing plate is provided on one side of the filter screen;

[0009] The guiding assembly includes a plurality of guide plates mounted on a fixed plate, each of the guide plates being equidistantly distributed in an arc shape.

[0010] As a preferred embodiment of the impeller structure of the vertical pump in the tank described in this utility model, the upper cover plate is provided with two mounting plates on one side, each mounting plate is provided with a filter screen on one side, and one end of each filter screen is attached to the lower cover plate.

[0011] As a preferred embodiment of the impeller structure of the vertical pump in the trough described in this utility model, a plurality of spiral blades are provided between the upper cover plate and the spiral blades, one end of each spiral blade is connected to the hub, and a plurality of fixing screw holes are provided on each mounting plate.

[0012] As a preferred embodiment of the impeller structure of the vertical pump in the groove described in this utility model, each mounting groove is provided with a fixing screw on the inner side, one end of each fixing screw is threaded into the inner side of the corresponding fixing screw hole, and a fixing plate is provided on one side of each filter screen.

[0013] As a preferred embodiment of the impeller structure of the vertical pump in the tank described in this utility model, each of the fixed plates is provided with a plurality of guide plates on one side, one end of each guide plate is attached to the filter screen, and each fixed plate is provided with a connecting plate on one side.

[0014] As a preferred embodiment of the impeller structure of the vertical pump in the groove described in this utility model, the connecting plate has multiple connecting grooves, one side of the two connecting plates is provided with a constraint limiting plate, and one side of the connecting plate is provided with multiple connecting screws.

[0015] As a preferred embodiment of the impeller structure of the vertical pump in the groove described in this utility model, the constraint limiting plate is provided with a plurality of connecting nuts on one side, and one end of each connecting screw passes through the connecting groove and the constraint limiting plate and is connected to the connecting nut by a thread.

[0016] The beneficial effects of this utility model are:

[0017] 1. Each helical blade is connected to the hub at one end. The filter screen installed on one side of the mounting plate filters impurities in the liquid. The filter screen can intercept large debris, preventing it from directly contacting the helical blades of the impeller, thus avoiding damage to the helical blades by large debris, ensuring the normal operation of the impeller, and maintaining the stability of the pump's flow rate and head, thereby improving the pump's working efficiency.

[0018] 2. The fixing plate is installed on one side of the filter screen. The fixing plate is equipped with multiple guide plates that are equally spaced in an arc shape. One end of each guide plate is attached to the filter screen. When impurities in the liquid are intercepted by the filter screen, under the action of centrifugal force generated by the impeller rotation and liquid flow, the guide plates will guide these impurities from the filter screen side to the connecting plate side, thereby effectively preventing impurities from accumulating at the filter screen, avoiding blockage, and ensuring that the filter assembly can work continuously and stably. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0021] Figure 2 This is a schematic cross-sectional view of the overall structure of this utility model.

[0022] Figure 3 This is a partial structural diagram of the present utility model.

[0023] Figure 4 This is a schematic diagram of the filter screen structure of this utility model.

[0024] Explanation of reference numerals in the attached figures:

[0025] 1. Hub; 2. Lower cover plate; 3. Upper cover plate; 4. Spiral blade; 5. Mounting groove; 6. Mounting plate; 7. Filter screen; 8. Fixing plate; 9. Connecting plate; 10. Guide plate; 11. Fixing screw hole; 12. Fixing screw; 13. Constraint limiting plate; 14. Connecting groove; 15. Connecting screw; 16. Connecting nut. Detailed Implementation

[0026] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Example 1

[0027] Reference Figure 1-3 This is the first embodiment of the present invention, which provides an impeller structure for a vertical pump in a trough, including a hub 1 and a lower cover plate 2 on one side of the hub 1. An upper cover plate 3 is provided on the hub 1, and multiple mounting slots 5 are provided on the upper cover plate 3, including a mounting plate 6 installed on one side of the upper cover plate 3 and a filter screen 7 on one side of the mounting plate 6. A fixing plate 8 is provided on one side of the filter screen 7. Two mounting plates 6 are provided on one side of the upper cover plate 3, and a filter screen 7 is provided on one side of each mounting plate 6. One end of each filter screen 7 is attached to the lower cover plate 2.

[0028] Multiple spiral blades 4 are provided between the upper cover plate 3 and the spiral blades 4. One end of each spiral blade 4 is connected to the hub 1. Multiple fixing screw holes 11 are opened on each mounting plate 6. A fixing screw 12 is provided inside each mounting groove 5. One end of each fixing screw 12 is threaded into the corresponding fixing screw hole 11. A fixing plate 8 is provided on one side of each filter screen 7. Example 2

[0029] Reference Figure 2-4 This is the second embodiment of the present utility model. The difference between this embodiment and the first embodiment is that it includes multiple guide plates 10 installed on the fixed plate 8. Each guide plate 10 is distributed in an arc shape at equal intervals. Multiple guide plates 10 are provided on one side of each fixed plate 8. One end of each guide plate 10 is attached to the filter screen 7. A connecting plate 9 is provided on one side of each fixed plate 8.

[0030] Multiple connecting slots 14 are provided on the connecting plate 9. A constraint limiting plate 13 is provided on one side of the two connecting plates 9. Multiple connecting screws 15 are provided on one side of the connecting plate 9. Multiple connecting nuts 16 are provided on one side of the constraint limiting plate 13. One end of each connecting screw 15 passes through the connecting slot 14 and the constraint limiting plate 13 and is connected to the connecting nut 16 by threads.

[0031] In use, the inner side of the impeller hub 1 is equipped with the pump drive shaft. The hub 1 is connected to the pump drive shaft to ensure a stable connection so that the hub 1 can rotate with the drive shaft when the pump is running. Then, the lower cover plate 2 is installed on one side of the hub 1. The lower cover plate 2 serves to seal and protect the internal structure of the impeller. The upper cover plate 3 is installed on the hub 1. The multiple mounting slots 5 on the upper cover plate 3 cooperate with the fixing screw holes 11 on the mounting plate 6. The mounting plate 6 is fixed to the upper cover plate 3 by fixing screws 12. The mounting plate 6 is located on one side of the upper cover plate 3. Each mounting plate 6 has a filter screen 7 installed on one side, and one end of each filter screen 7 is attached to the lower cover plate 2 to form a relatively closed filtration space, which effectively prevents debris from entering from the side of the impeller.

[0032] Meanwhile, multiple spiral blades 4 are provided between the upper cover plate 3 and the spiral blades 4. One end of each spiral blade 4 is connected to the hub 1. When the vertical pump in the tank starts to work, the liquid enters the impeller area from the pump inlet. The filter assembly plays its role. The filter screen 7 installed on one side of the mounting plate 6 filters the impurities in the liquid. The filter screen 7 can intercept large debris, preventing it from directly contacting the spiral blades 4 of the impeller, thereby avoiding damage to the spiral blades 4 by large debris, ensuring the normal operation of the impeller, and thus maintaining the stability of the pump's flow rate and head, and improving the pump's working efficiency.

[0033] During impeller rotation, the fixing plate 8 is installed on one side of the filter screen 7. The fixing plate 8 is provided with multiple guide plates 10 that are equidistantly distributed in an arc shape, and one end of each guide plate 10 is in contact with the filter screen 7. When impurities in the liquid are intercepted by the filter screen 7, under the action of centrifugal force generated by the impeller rotation and liquid flow, the guide plate 10 will guide these impurities from one side of the filter screen 7 to the other side of the connecting plate 9, thereby effectively preventing impurities from accumulating at the filter screen 7, avoiding blockage, and ensuring that the filter assembly can work continuously and stably.

[0034] A connecting plate 9 is provided on one side of the fixed plate 8. Multiple connecting slots 14 are opened on the connecting plate 9. A constraint limiting plate 13 is provided on one side of the two connecting plates 9. The connecting plate 9 is connected to the constraint limiting plate 13 by connecting screws 15. One end of the connecting screw 15 passes through the connecting slot 14 and the constraint limiting plate 13 and is connected to the connecting nut 16 by thread. This enhances the stability of the entire impeller structure, limits the position of the connecting plate 9 to a certain extent, and ensures that the guide plate 10 is accurately positioned when guiding debris, thereby better playing its guiding role and further improving the reliability and durability of the impeller structure.

[0035] The remaining structure is the same as that in Example 1.

[0036] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. An impeller structure for a vertical pump in a trough, comprising a hub (1) and a lower cover plate (2) on one side of the hub (1), characterized in that: The hub (1) is provided with an upper cover plate (3), and multiple mounting slots (5) are provided on the upper cover plate (3); The filter assembly includes a mounting plate (6) installed on one side of the top cover (3) and a filter screen (7) on one side of the mounting plate (6), wherein a fixing plate (8) is provided on one side of the filter screen (7). The guide assembly includes a plurality of guide plates (10) mounted on a fixed plate (8), each of the guide plates (10) being equidistantly distributed in an arc.

2. The impeller structure of the vertical pump in the tank according to claim 1, characterized in that: The upper cover plate (3) has two mounting plates (6) on one side, and each mounting plate (6) has a filter screen (7) on one side. One end of each filter screen (7) is attached to the lower cover plate (2).

3. The impeller structure of the vertical pump in the tank according to claim 1, characterized in that: Multiple spiral blades (4) are provided between the upper cover plate (3) and the spiral blades (4). One end of each spiral blade (4) is connected to the hub (1). Multiple fixing screw holes (11) are provided on each mounting plate (6).

4. The impeller structure of the vertical pump in the tank according to claim 1, characterized in that: Each mounting slot (5) has a fixing screw (12) inside. One end of each fixing screw (12) is threaded into the corresponding fixing screw hole (11). Each filter screen (7) has a fixing plate (8) on one side.

5. The impeller structure of the vertical pump in the tank according to claim 1, characterized in that: Each of the fixed plates (8) has multiple guide plates (10) on one side, one end of each guide plate (10) is attached to the filter screen (7), and each fixed plate (8) has a connecting plate (9) on one side.

6. The impeller structure of the vertical pump in the tank according to claim 5, characterized in that: Multiple connecting slots (14) are provided on the connecting plate (9), and a constraint limiting plate (13) is provided on one side of the two connecting plates (9), and multiple connecting screws (15) are provided on one side of the connecting plate (9).

7. The impeller structure of the vertical pump in the tank according to claim 6, characterized in that: The constraint limiting plate (13) has multiple connecting nuts (16) on one side. Each connecting screw (15) passes through the connecting groove (14) and the constraint limiting plate (13) at one end and is connected to the connecting nut (16) by threads.

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